Shriek is a sounds engineer and a villain in DC. He was a sounds scientist but later became an assassin for Derek Powers. He was sent by Powers to kill Bruce which almost succeeded but was stopped by Terry. Shriek escaped to his apartment where Terry disguised as a delivery boy arrives at his doorstep. Shriek shows him around but became suspicious of him when he mentioned a sonar device.
Shriek was later apart of the Inquity Collective at some point in the future and battle the Justice League.